JB,
How old were your (Carlisle) tires? Did you check the PSI that morning before you pulled out? had you added anything to the trailer that would have added a lot of extra weight to the trailer, how fast were you driving when the tires failed?
just checking as my new trailer, jayco has the same tires, so far I check the psi (50) each morning before we pull out and I drive at around 62 mph.
so far, so good, but I am concerned about the tires, however, most all the trailers we looked at had the same tires.
if you bought the trailer new, they should have install tires that were made at least in that year, but sometimes the manufacture could install older tires.
I know it's hard but tires about 4+ years old and still looking new, its hard to spend the money to change out trailer tires.
I kept the first tires on my other trailer 6-7 years, I was lucky, but they should have been changed by 5 years at the most, but I had to learn the hard way.
I also lost all the valve stems on one set of TT tires, tires were fine, but valve stems were crap,
I always spend extra for the heavy duty valve stems on my trailer and truck.